Hey, welcome to Dash Platform 84th Sprint review. Here's a short summary of what has been done for the last two weeks.

TenderDash Goals

Backports Tendermint master branch and design withdrawal transitions

What We Planned

• Pre-release with ABCI++ done
• Finalize withdrawal transactions using vote-extensions done
• Tenderdash is ready for a new prerelease that will include vote-extensions
• Validator key verification in progress
• Pull request is ready for review (postpone until 14 Jul)

Bonus
Actualization PR about integration of go-bindings for BLS v1 in progress

What’s Next

• Finish working on the integration of go-bindings for BLS v1
• Pre-release ABCI++ including improvements for vote-extensions
• Update vote-extension part in ABCI++ spec
• Research: same-block execution - signing current state instead of previous one in ABCI

GroveDB Goal

Grovedb Costs, Batches and Multi-query Proofs

GroveDB tasks
Features

• Multi-query proof generation and verification in progress
• Proof of path absence done
• Proof documentation in progress
• Batches v2 in review
• Cost for storage in progress

Costs for storage rationale

• On GroveDB level costs were approximate
• On subtrees (Merk) level costs became more accurate, but don’t represent any possible changes on storage level
• A big part of costs API includes storage operations’ data, if we collect these metrics starting directly from storage usage we’ll have better results and easier maintenance

What’s Next

• Standardize root tree to AVL tree
• Efficient references
• Finish current tasks

SDK Sprint Goals

Rework chain synchronization process (SPV), SDK repository documentation update, Stabilizing dashmate

What We Planned

• Update SDK docs in progress
• Dashmate upgraded to work with Docker Compose v2 done
• Add flag for faucet wallet storage directory done
• Investigate dashmate setup issues in progress

Wallet synchronization

• Reworking wallet synchronization process in progress
• Replace x11 hash JS library with wasm one done
• React App POC done
• dash-spv library optimizations in progress

What’s Next
Rework chain synchronization process (SPV)
SDK repository documentation update

Protocol Sprint Goals

Fee calculation, distribution pools, and proofs

What We Planned
Fee calculation

• Predict worst-case fees for state transition validation in progress
• Collect operations without execution to calculate fee in RS Drive in progress
• Fixed non-deterministic fees for data contract cache done

GroveDB Batches integration

• Integrate GroveDB batches into RS Drive done

What We Planned
Fee Distribution Pools

Implementation in review
Integration with JS Drive in progress

Proofs

• Simplify public key to identity structure and remove getIdentityIdsByPublicKeyHash done
• Provide proofs from DAPI done

Others

• Allow 1 char document type and property name in DPP
• Log synchronize masternode identities in Drive
• Fixed uncertain transaction rollback

What’s Next

• Continue on fee system
• Release Platform v0.23
• ABCI++ integration

Rust Port Update

Progress

• This sprint was a little bit different in terms from what we did before: We’ve started the first efforts on the integration of DPP
• Wrote tests to ensure that the binary serialization is in line with the JS implementation
• Ported some code serialization code from RS-Drive over to DPP, so the backend team can check what effort is needed to plug DPP in RS-Drive